Move ContentBrowserSanityChecker and WebContentsObserverSanityChecker from content/public/test to c…

content/public/test/content_browser_sanity_checker.cc

-// Copyright 2014 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "content/public/test/content_browser_sanity_checker.h"
-
-#include "base/bind.h"
-#include "content/browser/web_contents/web_contents_impl.h"
-#include "content/public/test/web_contents_observer_sanity_checker.h"
-
-namespace content {
-
-namespace {
-bool g_sanity_checks_already_enabled = false;
-}
-
-ContentBrowserSanityChecker::ContentBrowserSanityChecker() {
-  CHECK(!g_sanity_checks_already_enabled)
-      << "Tried to enable ContentBrowserSanityChecker, but it's already been "
-      << "enabled.";
-  g_sanity_checks_already_enabled = true;
-
-  creation_hook_ =
-      base::Bind(&ContentBrowserSanityChecker::OnWebContentsCreated,
-                 base::Unretained(this));
-  WebContentsImpl::FriendZone::AddCreatedCallbackForTesting(creation_hook_);
-}
-
-ContentBrowserSanityChecker::~ContentBrowserSanityChecker() {
-  WebContentsImpl::FriendZone::RemoveCreatedCallbackForTesting(creation_hook_);
-  g_sanity_checks_already_enabled = false;
-}
-
-void ContentBrowserSanityChecker::OnWebContentsCreated(
-    WebContents* web_contents) {
-  WebContentsObserverSanityChecker::Enable(web_contents);
-}
-
-}  // namespace content